The superconducting state of YBa2Cu3O7−δ
✍ Scribed by James F. Annett; Nigel Goldenfeld
- Publisher
- Springer US
- Year
- 1992
- Tongue
- English
- Weight
- 632 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0022-2291
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Superconducting Cuprates and Related Oxides. Part 10. In situ Neutron Powder Diffraction Investigation of the Solid State Synthesis of YBa 2 Cu 3 O 7-δ in a Flow of Oxygen at Temperatures up to 950 • C. -The in situ investigation of the solid state synthesis of tetragonal YBa 2 Cu 3 O 7-δ from a sto
We have measured the electron momentum density in both insulating PrBa 2 Cu 3 O 7Ϫd and superconducting YBa 2 Cu 3 O 7Ϫd : We find a remarkable difference in the anisotropy of the momentum density, even though LDA based calculations predict similar behaviour for both. Our results can be explained as